<?php

namespace App\Http\Controllers\Parking\Operasional;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Symfony\Component\HttpFoundation\StreamedResponse;

class TransaksiParkirController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        return view ('operasional.transaksi-parkir');
    }

    /**
     * Data transaksi parkir dengan filter pencarian.
     *
     * Filter (semua opsional):
     * - field: id | no_pol | no_barcode, + q: kata kunci
     * - tgl_awal / tgl_akhir (Y-m-d): periode kolom tanggal
     * - status_kendaraan: 1 = masuk, 0 = keluar
     * - status_transaksi: 0 = casual, 3 = member, 32 = denda
     * - sort_by + sort_dir (asc/desc): klik header kolom
     * - export=csv: unduh hasil filter sebagai CSV
     */
    public function data(Request $request)
    {
        $sortable = [
            'id', 'no_pol', 'no_barcode', 'id_kendaraan', 'nama_kendaraan',
            'waktu_masuk', 'waktu_keluar', 'tanggal',
            'id_op_masuk', 'id_op_keluar', 'id_pintu_masuk', 'id_pintu_keluar',
            'bayar_keluar', 'status', 'status_transaksi',
        ];

        $request->validate([
            'field' => 'nullable|in:id,no_pol,no_barcode',
            'q' => 'nullable|string|max:100',
            'tgl_awal' => 'nullable|date_format:Y-m-d',
            'tgl_akhir' => 'nullable|date_format:Y-m-d|after_or_equal:tgl_awal',
            'status_kendaraan' => 'nullable|in:0,1',
            'status_transaksi' => 'nullable|in:0,3,32',
            'sort_by' => 'nullable|in:' . implode(',', $sortable),
            'sort_dir' => 'nullable|in:asc,desc',
            'per_page' => 'nullable|integer|min:1|max:500',
        ]);

        $query = $this->filteredQuery($request);

        if ($request->query('export') === 'csv') {
            return $this->exportCsv($query);
        }

        $perPage = (int) $request->input('per_page', 50);
        $rows = $query->paginate($perPage);

        return response()->json([
            'status' => true,
            'data' => $rows->items(),
            'summary' => $this->summary($request),
            'meta' => [
                'current_page' => $rows->currentPage(),
                'per_page' => $rows->perPage(),
                'total' => $rows->total(),
                'last_page' => $rows->lastPage(),
            ],
        ]);
    }

    /**
     * Rekap sedetail logic report (per segmen) dari filter yang sedang aktif.
     * - keluar = status 0 ; tunai = cara_bayar null/0 ; cashless = cara_bayar 3
     * - casual/member/denda/manual/masalah = subset tunai (ikut reportOfficer)
     */
    protected function summary(Request $request): array
    {
        $tunai = "(tp.cara_bayar IS NULL OR tp.cara_bayar = 0)";
        $keluar = "tp.status = 0";

        $query = $this->filteredQuery($request);
        $query->reorder();
        $query->columns = [];
        $row = $query
            ->selectRaw("
                count(*) as total_rows,
                coalesce(sum(tp.bayar_keluar), 0) as total_bayar,
                count(case when {$keluar} then 1 end) as keluar_rows,
                coalesce(sum(case when {$keluar} then tp.bayar_keluar end), 0) as keluar_bayar,
                count(case when {$keluar} and {$tunai} then 1 end) as tunai_rows,
                coalesce(sum(case when {$keluar} and {$tunai} then tp.bayar_keluar end), 0) as tunai_bayar,
                count(case when {$keluar} and tp.cara_bayar = 3 then 1 end) as cashless_rows,
                coalesce(sum(case when {$keluar} and tp.cara_bayar = 3 then tp.bayar_keluar end), 0) as cashless_bayar,
                count(case when {$keluar} and {$tunai} and tp.status_transaksi = '0' and tp.id_op_masuk is not null then 1 end) as casual_rows,
                coalesce(sum(case when {$keluar} and {$tunai} and tp.status_transaksi = '0' and tp.id_op_masuk is not null then tp.bayar_keluar end), 0) as casual_bayar,
                count(case when {$keluar} and {$tunai} and tp.status_transaksi = '3' then 1 end) as member_rows,
                coalesce(sum(case when {$keluar} and {$tunai} and tp.status_transaksi = '3' then tp.bayar_keluar end), 0) as member_bayar,
                count(case when {$keluar} and {$tunai} and tp.status_transaksi = '32' then 1 end) as denda_rows,
                coalesce(sum(case when {$keluar} and {$tunai} and tp.status_transaksi = '32' then tp.bayar_keluar end), 0) as denda_bayar,
                count(case when {$keluar} and {$tunai} and tp.id_op_masuk is null then 1 end) as manual_rows,
                coalesce(sum(case when {$keluar} and {$tunai} and tp.id_op_masuk is null then tp.bayar_keluar end), 0) as manual_bayar,
                count(case when {$keluar} and {$tunai} and tp.status_transaksi = '-1' then 1 end) as masalah_rows,
                coalesce(sum(case when {$keluar} and {$tunai} and tp.status_transaksi = '-1' then tp.bayar_keluar end), 0) as masalah_bayar
            ")
            ->first();

        return (array) $row;
    }

    protected function filteredQuery(Request $request)
    {
        $query = DB::table('transaksi_parkir as tp')
            ->leftJoin('jenis_mobil as jm', 'jm.id', '=', 'tp.id_kendaraan')
            ->select(
                'tp.id',
                'tp.no_pol',
                'tp.no_barcode',
                'tp.id_kendaraan',
                'jm.nama as nama_kendaraan',
                'tp.status',
                'tp.status_transaksi',
                'tp.waktu_masuk',
                'tp.waktu_keluar',
                'tp.tanggal',
                'tp.id_op_masuk',
                'tp.id_op_keluar',
                'tp.id_pintu_masuk',
                'tp.id_pintu_keluar',
                'tp.bayar_keluar'
            );

        // 1. Pencarian: id / no_pol / no_barcode
        if ($request->filled('q')) {
            $field = $request->input('field', 'id');
            $query->where("tp.{$field}", 'ILIKE', '%' . $request->input('q') . '%');
        }

        // 2. Periode awal - akhir (kolom tanggal)
        if ($request->filled('tgl_awal')) {
            $query->whereDate('tp.tanggal', '>=', $request->input('tgl_awal'));
        }
        if ($request->filled('tgl_akhir')) {
            $query->whereDate('tp.tanggal', '<=', $request->input('tgl_akhir'));
        }

        // 3. Status kendaraan: 1 = masuk, 0 = keluar
        if ($request->filled('status_kendaraan')) {
            $query->where('tp.status', (int) $request->input('status_kendaraan'));
        }

        // 4. Status transaksi: 0 = casual, 3 = member, 32 = denda
        if ($request->filled('status_transaksi')) {
            $query->where('tp.status_transaksi', (int) $request->input('status_transaksi'));
        }

        // 5. Sorting klik header (default: tanggal terbaru)
        $sortMap = ['nama_kendaraan' => 'jm.nama'];
        $sortBy = $request->input('sort_by', 'tanggal');
        $sortDir = $request->input('sort_dir', 'desc');
        $query->orderBy($sortMap[$sortBy] ?? "tp.{$sortBy}", $sortDir);

        return $query;
    }

    protected function exportCsv($query): StreamedResponse
    {
        $filename = 'transaksi-parkir-' . now()->format('Ymd-His') . '.csv';

        return response()->streamDownload(function () use ($query) {
            $out = fopen('php://output', 'w');
            fputcsv($out, ['ID', 'No. Pol', 'Barcode', 'Kendaraan', 'Status Kendaraan', 'Status Transaksi', 'Waktu Masuk', 'Waktu Keluar', 'Op Masuk', 'Op Keluar', 'Pintu Masuk', 'Pintu Keluar', 'Bayar Keluar']);
            $query->chunk(1000, function ($rows) use ($out) {
                foreach ($rows as $r) {
                    fputcsv($out, [
                        $r->id,
                        $r->no_pol,
                        $r->no_barcode,
                        trim(($r->id_kendaraan ?? '') . ' ' . ($r->nama_kendaraan ?? '')),
                        $r->status,
                        $r->status_transaksi,
                        $r->waktu_masuk,
                        $r->waktu_keluar,
                        $r->id_op_masuk,
                        $r->id_op_keluar,
                        $r->id_pintu_masuk,
                        $r->id_pintu_keluar,
                        $r->bayar_keluar,
                    ]);
                }
            });
            fclose($out);
        }, $filename, ['Content-Type' => 'text/csv']);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        //
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        //
    }
}